scholarly journals On-farm evaluation of growth and reproductive performances of Washera and Gumuz sheep in northwestern Ethiopia: Basics for setting up breeding objectives/goals

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254924
Author(s):  
Sisay Asmare ◽  
Kefyalew Alemayehu ◽  
Solomon Abegaz ◽  
Aynalem Haile
Keyword(s):  
Weight Gain ◽  
Reproductive Performance ◽  
Interaction Effect ◽  
Growth Traits ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Breed Type ◽  
Breeding Objectives ◽  
Performance Traits

Growth and reproductive performance traits are traits of economic importance for sheep selection and productivity improvement interventions. This study aimed at comparative evaluation of growth and reproductive performance traits of sheep in the highland and lowland agro-ecologies of northwestern Ethiopia. Data on growth performance traits were collected from 144 Washera (78 males and 66 females) lambs and 72 Gumuz (37 males and 35 females) lambs. Data on reproductive performance traits were collected from 260 Washera (130 rams and 130 ewes) sheep and 150 Gumuz (75 rams and 75 ewes) sheep. General linear model univariate procedure was employed to analyze the collected data. Breed, the interaction effect between breed and season of birth as well as the interaction effect between breed and type of birth all exerted very high significant effect (P<0.001) on live weight at all age groups. Breed type affected pre-weaning average daily weight gain significantly (P<0.01). Pre-weaning average daily weight gain of Washera (70 g/day) was found much better performance than 60 g/day of Gumuz. Breed type exerts significant (P<0.05) effect on age at first lambing, lambing interval, annual reproductive rate and number of lambs born per ewe life time. Average age at first lambing and lambing interval of Washera sheep were 11.69 months and 9.27 months, respectively. The corresponding values for Gumuz sheep were 12.51 months and 10.43 months, respectively. Production and reproduction performance values of traits varied across the two breeds and sexes as well. These values can be used to set up breeding objectives or goals for selective breeding of sheep giving special emphasis to growth traits believed to have medium heritability values.

scholarly journals Performance characteristics and cost benefit of feeding weaner rabbits cashew nut residue based diets

2021 ◽  
Vol 34 (2) ◽  
pp. 203-207
Author(s):  
F.A.O. Akinnusi ◽  
A.M. Bamgbose ◽  
A.B. Ogunola ◽  
A.A. Alade
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Cost Benefit ◽  
Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Average Daily Weight Gain ◽  
Cashew Nut ◽  
Feed Cost ◽  
Dietary Treatments

A 42-day feeding trial was conducted to investigate the performance characteristics and cost benefit of feeding weaner rabbits cashew nut residue (CNR) based diets. Three dietary treatments containing: 0.10 and 20% CNR at the expense of maize on a weight for weight basis were used. Eighteen weaner rabbits (mixed breeds and sexes) were randomly divided into three groups of six rabbits each in a completely randomized design (CRD). The average daily weight gain, average daily feed intake and feed conversion ratio were not significantly influenced (P>0.05) by the dietary treatments. But rabbits fed 10% CNR based diet had the highest values for average daily weight gain and average daily feed intake while rabbits fed the control diet (0% CNR) had the least value for feed conversion ratio. No mortality was recorded for all the dietary treatments. The feed cost/kg diet (₦), feed cost/kg live weight gain (₦/kg) and cost of feed consumed/day (₦) decreased steadily with increasing level of cashew nut residue meal. The saving on feed cost (%) was not significantly affected (P>0.05) by the dietary treatments, but increased across the groups. However, the saving on feed to produce 1kg live weight was significantly (P<0.05) influenced by the CNR based diets. Rabbits fed 10% CNR based diet had the highest value of 9.66% than their counterparts fed other diets. It is concluded that cashew nut residue could be incorporated into rabbit diet at 10% without compromising the performance

scholarly journals Evaluating the growth of replacement heifers from different seed bulls

2021 ◽  
Vol 282 ◽  
pp. 03008
Author(s):  
O.V. Gorelik ◽  
S. Yu. Harlap ◽  
O.P. Neverova ◽  
M.N. Sen ◽  
P.S. Galushina ◽  
...  
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Genetic Potential ◽  
Different Ages ◽  
Weight Gains ◽  
Second Period

In the Sverdlovsk region Holsteinized Black Pied cattle of the Ural type are bred which are represented by large, highly productive animals with a high genetic potential for productivity. Great importance is attached to the rearing replacement calves. The aim of the study was to study the dynamics of the live weight of replacement heifers from different seed bulls during rearing and its dependency on the age of the first insemination. The highest average daily weight gains were in the dairy period of heifers development, they ranged from 989 g for the daughters of the bull Thunderline to 1054 g for their peers from the bull Maximum. There were also high average daily gains during this period when rearing heifers from the bull Renigend. In the second period of rearing from 6 to 10 months of age there was a decrease in the average daily weight gain in all groups. Heifers from different seed bulls reach the required live weight for the first insemination at different ages. Maximum’s daughters, which had the weight of 399.4 kg at the age of 12.9 months. reached the required live weight most quickly. Their peers from other seed bulls reached the aforementioned live weight only at the age of 13.7 months.

scholarly journals The evaluation of growth and selected carcass and meat quality parameters in fattening bulls fed a diet based on concentrates or maize silage

2008 ◽  
Vol 53 (No. 9) ◽  
pp. 368-376 ◽  
Author(s):  
E. Štercová ◽  
A. Krása ◽  
R. Lepková ◽  
J. Šterc
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Live Weight ◽  
Quality Parameters ◽  
Diet Group ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Maize Silage ◽  
The Mean

The aim of the study was to evaluate the growth rate and selected carcass and meat quality parameters in bulls fed a high-grain diet and to compare the results with those obtained in bulls fed a diet based on preserved roughage. The trial included 18 Czech-Pied bulls fed a diet with a high proportion of concentrated feed and 18 Czech-Pied bulls fed a diet based on maize silage, used as a control group. The trial was launched after the weaning of calves. During the fattening period, live weight and average daily weight gain were monitored. The bulls were slaughtered at the live weight of 550–600 kg, the mean age at slaughter was 473 days for the high-grain diet group and 474 days for the control group. The carcasses were classified to SEUROP quality grades, and carcass gain and dressing percentage were calculated. Samples of <I>m. longissimus pars thoracis</I> were taken from five bulls in each group to examine selected meat quality parameters. In the period from weaning to slaughter the high-grain diet bulls and the control bulls achieved the average daily weight gain of 1.29 kg and 1.21 kg, respectively. Differences between the groups were not significant. The high-grain diet group showed higher average carcass weight and higher carcass weight gain, differences between the groups were not significant, either. As to meat quality parameters under study, a significant difference was found only in meat lightness (L*), with the mean value in the high-grain diet group being significantly (<I>P</I> ≤ 0.01) lower than in the control group. The other meat quality parameters did not show any significant differences between the groups. In this study, the high-grain diet gave similar performance as the maize silage-based diet in fattening bulls. The high-grain diet group and control group showed comparable average daily weight gain and selected carcass and meat quality parameters.

scholarly journals Growth performances of broilers hybro G+ provenience

2011 ◽  
Vol 27 (4) ◽  
pp. 1643-1648
Author(s):  
S. Lilic ◽  
D. Sefer ◽  
S. Dimitrijevic ◽  
T. Ilic ◽  
S. Ivanovic ◽  
...  
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Average Daily Weight Gain ◽  
Growth Performances ◽  
Fattening Period

In this paper are presented the growth performances (live weight, average daily weight gain, feed consumption and feed conversion ratio) of broilers Hybro G+ provenience. Feeding, zoohygienic and zootechnical measures met technological normative for this provenience. Broilers were fed with the complete feed mixtures (producer ?Dren?, Novi Sad) with added anticoccidial salinomycine in the amount of 66 mg/kg up to 35. day of fattening. In last week of the fattening period, salinomycine was not added (drug waiting period is 5 days). Live weight of broilers at the end of trial was 1959.74 g to 2750.48 g (average 2340.62 g). During the fattening period, average daily weight gain was 54.70 ? 5.03 g; it was in the range 45.71-64.39 g. Average daily feed consumption was 87.97 g for all fattening period and feed conversion ratio was 87.97 g.

scholarly journals ADAPTIVE CAPACITY OF STUD RAMS OF ASKANIAN MEAT AND WOOL BREED AND PARAMETERS OF SELECTION OF ZAKARPATTJA-TYPE PRECOCE BREED EWES FOR INTER-BREEDING

2020 ◽  
Vol 21 (1) ◽  
pp. 52-59
Author(s):  
I. V. Goncharenko ◽  
V. M. Agiy ◽  
R. G. Filep ◽  
T. M. Durdinets
Keyword(s):  
Weight Gain ◽  
Thin Layer ◽  
Adaptive Capacity ◽  
Live Weight ◽  
Steppe Zone ◽  
Theory And Practice ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Meat Productivity

The rams of the Askanian meat-wool breed, grown and kept in the conditions of the steppe zone of the south of Ukraine, were investigated for their adaptive capacity and adaptation to the conditions of the lowland regions of Zakarpattja. It was found that the physiological response of the rams to the maximum air temperature was characterized by a slight increase in body temperature and pulse, and a significant increase in respiratory rate per 1 minute. The good adaptive properties of the Askanian meat and wool breed rams are indicated by the high breeding capacity of ewes, at 97%, in both farms. The ewes of the breed prekos with a live weight of 55.9–58.9 kg were involved in the breeding process, and the Askanian rams with a live weight of 93.3–95.1 kg. It was studied the influence of crossbred crossing of crossbred Askanian sheep of meat and wool breed on the development of productive and reproductive features of Zakarpattja sheep ewes of the breed prekos with the purpose of obtaining mixed breeds with improved economic performance. It is proven by theory and practice that one of the main criteria for the rational management of sheep breeding in modern conditions is the study of individual features of growth and development of young sheep. In a market economy, increasing the meat productivity of sheep is an important factor that determines the level of economic efficiency of the industry. Obtained progeny at the age of 4–8 months had a higher intensity of growth. Thus, the average daily weight gain of lambs in the control group was 234 g, and experimental — 265 g, which is 11.3% more than in the control. The average daily weight gain of the bright control group was 205 g, and the experimental one — 244 g, which is 11.9% more than in the control group. At the age of 8 months, the fat mass of slaughtered animals ranged from 32–36 kg and the carcass weight was 15–18 kg with good fat irrigation. The classification of sheep carcasses by fat irrigation according to the EUROP system corresponded to the average level of coverage of carcasses with fat, that is, the whole carcass was covered with a thin layer of fat, at the base of the tail — small accumulations of fat, the kidneys partially or completely covered with a thin layer of fat, with a slight fatty water between visible intercostal muscles .The balanced feeding of experimental animals had a positive effect on the increase in live birth weight and their viability. The minimum selection parameters of breeding sheep ewes, which are involved in the breeding process, are also set for obtaining animals with high multi-farrowing and combined productivity.

scholarly journals The Effect of Selected Factors on the Growth Ability of Charolais Cattle

2014 ◽  
Vol 62 (1) ◽  
pp. 255-260 ◽  
Author(s):  
Renáta Toušová ◽  
Jaromír Ducháček ◽  
Luděk Stádník ◽  
Martin Ptáček ◽  
Jan Beran
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Embryo Transfer ◽  
Live Birth ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Significance Level ◽  
Bull Calves ◽  
Charolais Cattle

The aim of this work was to analyze the growth abilities of bull and heifer calves (n = 190) of the Charolais breed calved in one herd from 2006 to 2011. The evaluation was carried out during the period of calf raising, focusing to the effects of sex, parity and the mating method on live birth weight (BLW) and the live weight at 120 (LW120), 210 (LW210) and 365 (LW365) days of life, as well as the average daily weight gain reached by the age of 120 (G120), 210 (G210), and 365 (G365) days. Statistical analysis was carried out with the use of the SAS 9.3 program. The effect of sex on the live weight and average daily weight gain was statistically significant on the level of P < 0.01 always in favour of the bull calves (BLW +3.05 kg, LW120 +29.35 kg, LW210 +36.98 kg, and LW365 +117.23 kg). The lowest live birth weight was detected in the calves of primiparous cows (BLW = 45.46 kg; P < 0.01). The higher parity, the higher live birth weight was determined, with maximum values in cows from the fourth calving. The trends were similar in live weight at 120, 210 and 365 days of age, when significance level was P < 0.05. The parity effect on the average daily weight gain (G120, G210 a G365) was statistically insignificant (P > 0.05). The effect of embryo transfer (ET) and other commonly used reproduction methods (insemination and natural mating, AI/PP) was evaluated as well as. The calves born after embryo transfer showed a significantly (P < 0.01) higher the live birth weight as well as weight at different ages (BLW +5.85 kg, LW120 +18.15 kg, LW210 +22.94 kg and LW365 +35.43 kg), and G120 only (+100 g×day−1; P < 0.05). These results pointed the suitability of using the biotechnological reproduction methods, especially in relation to the total weight of the reared and fattened animals.

scholarly journals On-farm Evaluation and Demonstration of Different Feeding Technological Options forBeef Cattle Fattening in Adami Tulu Jidokombolcha District, East Shoa Zone

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Aman Gudeto ◽  
Tesfaye Alemu T ◽  
Ashebir Worku ◽  
Frehiwot Mesele ◽  
Genet Dadi ◽  
...  
Keyword(s):  
Weight Gain ◽  
Wheat Bran ◽  
Cost Benefit Analysis ◽  
Live Weight ◽  
Cost Benefit ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Gross Margin ◽  
Total Weight Gain ◽  
On Farm

Evaluation and demonstration study was conducted at Kemo-Gerbi kebele of Adami Tulu Jidokombolcha district on Borana bulls with the objectives of evaluation and demonstration of bulls fattening technologies at on-farm level. One farmer’s research extension group (FREG) was formed for fattening the bulls. Twenty bulls were purchased from Borana zone by farmers for the fattening trials. Two feeding treatments (T1= Grazing + 20% crushed maize grain + 45% wheat bran + 35% Noug cake and T2 = Grazing + 65% wheat bran + 35% cotton seed cakes) were evaluated. The animals were randomly assigned for dietary rations and data on live weight change of the animals were taken using weight chart tape (developed by JICA project).  Final body weights, total weight gain and average daily weight gain of the bulls were not significant (P>0.05) among the treatments. Bulls fed on treatment one attained an average daily weight gain of 0.83 kg per bull ; while bulls fed on treatment two gained 0.76 kg per bull per day. Total gross margin of treatment one (53,154.5 ETB) was higher than treatment two (49,467.75 ETB). Cost-benefit analysis indicated that feeding option number one (T1) is more economical as compared to bulls fed on T2.  However, fatteners can use any of the feeding options depending on availability of the ingredients in their area.

scholarly journals Live weight dynamics and exterior indexes of jersey breed fed on dry brewers waste

2019 ◽  
pp. 95-102
Author(s):  
A. Veres ◽  
M. Kryvyi
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Relative Growth Rate ◽  
Live Weight ◽  
The Body ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Relative Growth ◽  
Experimental Group

The scientific results of the body weight dynamics, the multiplicity of its increase, the average daily weight gain, the relative growth rate and the exterior indicators are presented. The brewers waste is a high-protein product with a high content of carbohydrates, including fiber.For the research, three groups of Jersey breed were formed on the principle of the analogue group: the first was control, the second and the third – experimental. Their rations were introduced by 15 % and 20 % of dry brewers waste from the total diet, respectively. It was established that the live weight of the experimental cows from the 2nd group was 9.3 times bigger. The live weight of the experimental cows from the 1st and 3rd group increased 9 times. The cows from the 2nd group had the highest average daily weight gain (811.4 g) in the period from 2 to 6 months. It was 3.2 % times more than in the control group and 7.4 % times more than in the 3rd experimental group. The cows from the 2nd experimental group had the highest relative growth rate (85.7 %) in the period from 2 to 6 months which was 2.2 % times more than in the 1st control group and 4.2% times more than in the 3rd experimental group. In the period from 6 to 12 months, the 2nd experimental group had the highest average daily weight gain (671.4 g), which was 2.1 % more than in the 1st control group and 3.5 % more than in the 3rd experimental group. From 6 to 12 months the relative growth rate in all groups was almost the same and ranged from 54.2% – 54.7 %. At the age of 12 months, the 1st control group had greater index (120.4). The 3rd experimental group had 119.6 and the 2nd – 118.6. The 2nd group of the same age had better shooting index than the 1st control group 0.7 % times more and the 3rd group 1.4 % times more. It indicated the better development of the body weight. Key words: dynamics, weight gain, repair heifers, Jersey breed, measurements, indicators.

scholarly journals FATTENING AND SLAUGHTER RESULTS ANALYSIS OF HEREFORD BREED BULLS BORN IN DIFFERENT SEASONS

2018 ◽  
Author(s):  
Inga MUIZNIECE ◽  
Daina KAIRISA
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Spring Season ◽  
Research Groups ◽  
Average Daily Weight Gain ◽  
Average Birth Weight ◽  
Different Seasons ◽  
Autumn And Winter

The aim of this study was to explain the birth season effect on Hereford bulls fattening results. The research was made within the project ‘Baltic Grassland Beef’ framework in years 2015 and 2016. Data about 41 Herford purebred bull was used in the research, grown in different farms of Latvia. Bulls were slaughtered in certified slaughterhouse ‘Agaras’ (Lithuania). The average birth weight of the Hereford breed bulls was in border from 42.9 – 45.0 kg. The lowest birth weight was on spring season born bulls – 42.9 kg, but the highest on winter season born bulls - 45.0. Average realization age of bull’s, in the research groups, was on range from 567 days to 661 days. Bulls born on autumn and winter before slaughtering were significantly older, respectively 661 and 655 days with live weight of 519.9 kg un 542.1 kg. On spring born bulls with age 600 days reached the biggest live weight – 542.0 kg, respectively these group bulls average daily weight gain from birth to slaughter per day was the biggest among all the groups – 831.9 g. The highest slaughter weight showed on autumn and winter seasons born bulls, respectively 275.5 kg and 274.8 kg. In the research groups on different seasons born bulls conformation score was from points 2.4 to 2.6. All the bull’s carcass in the research groups were evaluated as 2nd and 3rd fat class. between the age before slaughter and average daily weight gain from birth to slaughter there is an important negative correlation (from r = -0.858 to = -0.977, p&amp;amp;lt;0.05), except on spring season born bulls.

ВЛИЯНИЕ КОМПЛЕКСНОЙ МИНЕРАЛЬНО-ВИТАМИННОЙ КОРМОВОЙ ДОБАВКИ «НАДЕЖДА» НА ПРИРОСТ ТЕЛЯТ

2019 ◽  
pp. 30-33
Author(s):  
M.T. SABITOV ◽  
M.G. MALIKOVA ◽  
A.R. FARKHUTDINOVA ◽  
N.G. FENCHENKO ◽  
N.I. KHAIRULLINA
Keyword(s):  
Trace Elements ◽  
Weight Gain ◽  
Crude Protein ◽  
Live Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Average Daily Weight Gain ◽  
Live Weight Gain

Изучена и научно обоснована целесообразность использования в рационах телят чернопестрой породы комплексной минеральновитаминной кормовой добавки (КМВКД), в состав которой были введеныингредиенты: обесфторенный фосфат, мел кормовой, цеолит природный, сапропель, сера кормовая, магнезит, соль поваренная, соли микроэлементов и витамины А, D, Е. В экспериментальных исследованиях, проведенных на 4 группах телят, изучили влияние скармливания КМВКД на поедаемость кормов, прирост живой массы, расход корма на получение 1 кг прироста живой массы и рассчитали экономическую эффективность ее применения. При анализе рационов телят установлено, что содержание в кормах кальция, фосфора, магния, серы и микроэлементов (марганца, меди, цинка и кобальта) пониженное. Соотношение питательных и минеральных веществ, степень их доступности для усвоения организмом животных не обеспечивает потребность в них. В исследованиях установлено, что использование КМВКД положительно отразилось на поедаемости, переваримости и усвояемости питательных веществ корма и способствовало увеличению прироста живой массы телят. У молодняка контрольной группы, потреблявшего с основным рационом минеральные подкормки по нормам, среднесуточный прирост составил 750 г, а вIопытной группе, получавшей подкормку по рецепту 1 822,2 г, воII(рецепт 2)850 г иIIIгруппе (рецепт 3)934,4 г, или на 9,63, 13,3 и 24,6 больше, чем в контроле. В опытных группах на получение 1 кг прироста живой массы израсходовано меньше кормовых единиц на 9,74, 12,14 и 19,80 сырого протеина на 11,21, 10,94 и 18,52 и переваримого на 7,65 10,95 и 18,84. Себестоимость 1 ц прироста живой массы у животных опытных групп была ниже на 4,18, 8,93 и 17,13, а рентабельность выше на 4,4, 6,2 и 10,24.The goal of the study consisted in providing scientific evidence of the expediency of using a complex mineral and vitamin feed supplement (CMVFS) comprising defluorinated phosphate, feed chalk, natural zeolite, sapropel, feed sulfur, magnesite, fine salt, salts of trace elements and vitamins A, D and E in rations for BlackandWhite calves. The experiments carried out with four calf groups investigated the effect of the CMVFS on feed intake, live weight gain, feed conversion ratio (per 1 kg of weight gain) and involved the calculation of an economic benefit of using the supplement. The analysis of calf rations has shown that the feeds have low contents of calcium, phosphorus, magnesium, sulfur and trace elements (manganese, copper, zinc and cobalt). The ratio of nutrients to minerals and their bioavailability do not cover the need of the animals in the elements. The study demonstrated a positive effect of the CMVFS on feed intake, the digestibility and the availability of feed nutrients and the increase of a calf live weight gain. Calves from the control group receiving standard mineral supplements in addition to a base ration had an average daily weight gain of 750 g, an average daily weight gain of calves from the experimental group I receiving the supplement according to the recipe n 1 was 822.2 g, that of calves from group II (recipe n 2)was 850 g and that of calves from group III (recipe n 3) was 934.4 g, or exceeded the control by 9.63, 13.3 and 24.6. In the experimental groups the feed conversion ratio (per 1 kg of weight gain) was less in terms of feed units by 9.74, 12.14 and 19.80 in terms of crude protein by 11.21, 10.94 and 18.52 and in terms of digestible crude protein by 7.65 10.95 and 18.84. The cost value of 1 centner of live weight gain in animals from the experimental groups was lower by 4.18, 8.93 and 17.13 and the profit was higher by 4.4, 6.2 and 10.24.

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